My furnace and water heater both have gone out a couple of times this week. Usually in the early am. I had the pro out and he told me it was a clogged air filter. This morning I lit the pilot, when I turned on the main burner it fired for about a half a second and went out taking the pilot with it. Question is-do the gas valves in the furnace and water heater shut down if the line pressure is above a pre-determined limit? I am thinking the Regulator at the meter may be at fault.
As it turns out, the gas meter was freezing up, preventing the flow of gas to the furnace and water heater. When the sun came out the meter started working again. Thanks for the advice.